Grease-cup.



A.P .TAYL0R. l

GREASE CUP. APPLICATION FILED NOV. 30, 1906. RBNWED NOV.14, 1908. v

I Q-iw UNITED sTATEs PATENT orrron.,

ARTHUR F. TAYLOR, OF HALIFAX, NOVA SCOTIA, CANADA, ASSIGNOR, BY MESNE ASSIGN- MENTS,TO ROBIE S. DAVISON, HALIFAX, vNOVA SCOTIA, CANADA.

`. Speeication of VLetters Patent.

Patented Aug. 17, 1909'.

Application filed November 30, 1906, Seriai No. $15,731.l f Een ewed November 14, 1908. Serial No. 462,618.

To all whom 'it may'concern.

Be it known that I, ARTHUR F. TAYLOR, of Halifax', in the county of Halifaxi Zand,

Province of Nova Scotia, Canada, have "in-` yented certain new and useful Im rovements Y 1n Grease-Cups, of which the fo lowing 1s.: a.;

specification.

This invention relates to grease cups ineA tended particularly for use on locomotive-en- -Y Grease cups of this character employ a relatively hard gines to lubricate the crank pin.

grease, the cupV being provided witha screwthreaded plug which coniines the grease, and

is adjustable 'to force it inwardly toward the crank pin as the supply is reduced by wear. A serious diiiiculty that has heretofore been experienced with grease cups o f this character, is the liability of the loss of the i plug or plunger in consequence ofthe violent a grease CUP motion imparted to the grease cup. by the usual movements of the crank pin, the pluri er beingthus caused to work loose, and Ae t own out of the cup.V entails much annoyance," expense and loss of time.

j My invention has for its object to provide which shall be Vfree from the.

' above-mentloned objection, and is capable v of dealing with a larger charge of' grease than the-cups heretofore used, so that iilling ofthe cup isless frequentlyrequired than 5 .heretofore The invention ,consists in the improve?- proeeed to describe ber of my improved grease. vcu the member formed in the connecting ro strap being shown in section. Fig. 2 represents a view similar to Fig. 1, showing the adjustable member in section. Fig..3 represents a view similar to Fig. 2, showing the crank pin and. journal box, thel adjustable member ofthe ease,A cup havin a different adjustment om that shown 1n Fig. 2. Figs. 4 and 5 represent, res ectively, a side. view and 'an end view of t e plug or plunger in the adjustable member of the cup.

The same numerals of reference. indicate -the lsame parts in all .the iigures.

In the drawings, 12 vrepresents a cup or cavity formed in a connecting, rod strap 13, the wall of said cup' being internally screw threaded at its outer portion, and contracted `at its inner portion,forming'al1/outletl 14,

which communicates with a passage 15 ex- Y tending through the journal box 16A surrounding a crank pin 17. The strap, journal box and crank pin maybe of any construction suitable for use n,on a locomotive engine, or

- will refer to the strap 13 having'the chamber 12 as the inner member of the grease cup -mv order to distinguish 1t fromthe tubular member hereinafter described, which 1s ad?A justable relatively to the member 12 and ber, the terms inner and outer having reference to the point of supply or feed of the" grease.

". 18 represents the adjustable outer mem- 20 of the inner member 13. The adjustable member 18 is also provided with an internal thread 21 which enga es an external thread formed on a plug or p unger 22. The plunger 22 is adapted to be rotated in the adjustable member 18, said plunger being preferably provided with a squared socket 23 adapted to receive a key or wrench which rotates and ladjusts the plunger. 24 represents a lock nut engaged With the external thread of the member 18, and adapted to bear against the strap-13 to lockthe member 18 in any position to which it may be adjusted. The plunger 22 is provided with an anchor adapted to engage the grease in the cup, and formed so that its ,engagement with the grease will prevent loose or accidental rotation of the plunger, thus insuring against the outward'working and loss of the plunger which has heretofore been a serious difficulty. The anchor is preferably a 'stud 25 formed on' the inner. end of the plunger 22, said stud having an enlargement at its louter end with a beveled 'periphery 26. The enlargement is formedwith its smaller endv -in any other relation' where my improved v rease cup will be useful. For conveniencewhich may be referred to as the outer meminward, so that the enlargement is adapted to force its way with the minimum resistance into the charge of grease, the grease surrounding the reduced portion of the stud or anchor,A and engaging the 'shoulder formedv 'by the larger end ofthe enlargement, thus preventing laccidental rotation of, the plungerin the dirpction required to `move itout- 'wardly. The inner 'end portion of the adh justable member 18 is preferably reduced somewhat in diameter at 27, and provided with a shoulder 28 which is formed to have a close sliding it in the inner portion of the chamber 12.

In practice the chamber 12 of the member 13 is illed with grease. The adjustable member 18 is screwed partly into the member 13, and is locked in position by the lock nut 24. The plunger 22 is then inserted and adjusted until it comes to a rm bearing on the grease, its anchor being embedded in the grease. The member 18 is adjusted inwardly from time to time to compensate for the consumption of the grease without adjustment of the plunger 22 relatively to the member 18,' the member v18y and the forced outwardly plunger acting together to forcehthe inner portion of the charge of grease through the outlet 14. When the member 18 has been adjusted inwardly until its inner end abuts against the contracted end ol the chamber 12, the remaining portion of' the chargeis by successive adjustments of the lunger 22.

It w1 l be seen from the foregoing that pro'- vision is made for the accommodation of a relatively large charge of grease so that frequent renewal of the charge is not necessary.

curing the tubular member to the inner I member in different positions, and a plug or lunger having an adjustable connection with the tubular member, and provided with means for interlocking with the confined Grease.

- 2. grease cup comprising an inner mem-- ber having a grease outlet, a tubular outer member having an adjustable connectionl with the inner member, and movable toward and from the outlet, and a plug or plunger having an adjustable connection with the Ltubular member, and provided with means for interlocking with the conned grease.

' In testimony whereof I have aiiiXed my signature, in presence of two Witnesses.

ARTHUR F. TAYLOR. Witnesses:

GUY W. Ria-1D, J'. A. KNIGHT. 

